<template>
  <div>
    <!-- 面包屑导航区域 -->
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>活动管理</el-breadcrumb-item>
      <el-breadcrumb-item>活动列表</el-breadcrumb-item>
      <el-breadcrumb-item>活动详情</el-breadcrumb-item>
    </el-breadcrumb>
    <!-- 卡片视图区域 -->
    <el-card>
      <!-- 搜索与添加区域 -->
      <el-row :gutter="20">
        <el-col :span="8">
          <el-input
            placeholder="请输入内容"
            v-model="queryInfo.query"
            clearable
            @clear="getUserList"
          >
            <el-button
              slot="append"
              icon="el-icon-search"
              @click="getUserList"
            ></el-button>
          </el-input>
        </el-col>
        <el-col :span="4">
          <el-button type="primary" @click="addDialogVisible = true"
            >添加用户</el-button
          >
        </el-col>
      </el-row>
      <!-- 用户列表区域 -->
      <el-table :data="userlist" border>
        <el-table-column type="index" label="序号" width="60px">
        </el-table-column>
        <el-table-column prop="username" label="姓名"></el-table-column>
        <el-table-column prop="email" label="邮箱"></el-table-column>
        <el-table-column prop="mobile" label="电话"> </el-table-column>
        <el-table-column prop="role_name" label="角色"> </el-table-column>
        <el-table-column prop="mg_state" label="状态">
          <template slot-scope="scope">
            <el-switch
              v-model="scope.row.mg_state"
              @change="userStateChanged(scope.row)"
            >
            </el-switch>
          </template>
        </el-table-column>
        <el-table-column label="操作">
          <template slot-scope="scope">
            <!-- 修改按钮 -->
            <el-button
              type="primary"
              icon="el-icon-edit"
              circle
              @click="showEditDialog(scope.row.id)"
            ></el-button>
            <!-- 删除按钮 -->
            <el-button
              type="danger"
              icon="el-icon-delete"
              circle
              @click="removeUserById(scope.row.id)"
            ></el-button>
            <!-- 分配角色按钮 -->
            <el-tooltip
              effect="dark"
              content="分配角色"
              placement="top"
              :enterab="false"
            >
              <el-button
                type="waring"
                icon="el-icon-setting"
                @click="setRole(scope.row)"
                circle
              ></el-button>
            </el-tooltip>
          </template>
        </el-table-column>
      </el-table>
      <!-- 分页区域 -->
      <!-- 
        @size-change="handleSizeChange":监听pagesize改变的事件
        @current-change="handleCurrentChange"：监听页码值改变的事件
        :current-page="queryInfo.pagenum"://当前的页数
        layout:用来指定页面上显示哪些元素
       -->
      <el-pagination
        @size-change="handleSizeChange"
        @current-change="handleCurrentChange"
        :current-page="queryInfo.pagenum"
        :page-sizes="[1, 2, 5, 10]"
        :page-size="queryInfo.pagesize"
        layout="total, sizes, prev, pager, next, jumper"
        :total="total"
      >
      </el-pagination>
    </el-card>
    <!-- 添加用户信息的对话框 -->
    <el-dialog
      title="添加用户"
      :visible.sync="addDialogVisible"
      width="50%"
      @close="addDialogClosed"
    >
      <el-form
        :model="addForm"
        :rules="addFormRules"
        ref="addFormRef"
        label-width="70px"
        class="demo-ruleForm"
      >
        <el-form-item label="用户名" prop="username">
          <el-input v-model="addForm.username"></el-input>
        </el-form-item>
        <el-form-item label="密码" prop="password">
          <el-input v-model="addForm.password"></el-input>
        </el-form-item>
        <el-form-item label="邮箱" prop="email">
          <el-input v-model="addForm.email"></el-input>
        </el-form-item>
        <el-form-item label="手机" prop="mobile">
          <el-input v-model="addForm.mobile"></el-input>
        </el-form-item>
      </el-form>
      <span slot="footer" class="dialog-footer">
        <el-button @click="addDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="addUser">确 定</el-button>
      </span>
    </el-dialog>
    <!-- 修改用户信息的对话框 -->
    <el-dialog
      title="修改用户"
      :visible.sync="editDialogVisible"
      width="50%"
      @close="editDialogClosed"
    >
      <el-form
        ref="editFromRef"
        :model="editFrom"
        label-width="70px"
        :rules="editFromRules"
      >
        <el-form-item label="用户名">
          <el-input v-model="editFrom.username" disabled></el-input>
        </el-form-item>
        <el-form-item label="邮箱" prop="email">
          <el-input v-model="editFrom.email"></el-input>
        </el-form-item>
        <el-form-item label="手机号" prop="mobile">
          <el-input v-model="editFrom.mobile"></el-input>
        </el-form-item>
      </el-form>
      <span slot="footer" class="dialog-footer">
        <el-button @click="editDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="editUserInfo">确 定</el-button>
      </span>
    </el-dialog>
    <!-- 分配角色的对话框 -->
    <el-dialog
      title="提示"
      :visible.sync="setRoleDialogVisible"
      width="50%"
      @close="setRoleDialogClosed"
    >
      <div>
        <p>当前的用户:{{ userInfo.username }}</p>
        <p>当前的角色:{{ userInfo.role_name }}</p>
        <p>
          分配新角色:
          <el-select v-model="selectRoleId" placeholder="请选择">
            <el-option
              v-for="item in roleList"
              :key="item.id"
              :label="item.roleName"
              :value="item.id"
            >
            </el-option>
          </el-select>
        </p>
      </div>
      <span slot="footer" class="dialog-footer">
        <el-button @click="setRoleDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="saveRoleInfo">确 定</el-button>
      </span>
    </el-dialog>
  </div>
</template>
<script>
export default {
  data() {
    //验证邮箱规则
    var checkEmail = (rule, value, callback) => {
      const regEmail = /^\w+@\w+(\.\w+)+$/;
      if (regEmail.test(value)) {
        //合法邮箱
        return callback();
      }
      callback(new Error("请输入合法的邮箱!!!"));
    };
    //验证手机号规则
    var checkMobile = (rule, value, callback) => {
      const regMobile = /^1[34578]\d{9}$/;
      if (regMobile.test(value)) {
        //合法手机号
        return callback();
      }
      callback(new Error("请输入正确的手机号!!!"));
    };
    return {
      //获取用户列表的参数对象
      queryInfo: {
        query: "", //查询参数
        pagenum: 1, //当前页码
        pagesize: 2, //每页显示条数
      },
      userlist: [],
      total: 0,
      addDialogVisible: false, //控制用户添加的显示和隐藏
      editDialogVisible: false, //控制用户修改的显示和隐藏
      setRoleDialogVisible: false, //控制分配角色的显示与隐藏
      userInfo: {}, //需要被分配角色的用户信息
      roleList: [], //获取用户角色列表
      selectRoleId: "", //分配角色
      //添加用户的表单数据
      addForm: {
        username: "",
        password: "",
        email: "",
        mobile: "",
      },
      //添加表单的验证规则对象
      addFormRules: {
        username: [
          { required: true, message: "请输入用户名", trigger: "blur" },
          {
            min: 3,
            max: 10,
            message: "长度在 3 到 10 个字符",
            trigger: "blur",
          },
        ],
        password: [
          { required: true, message: "请输入密码", trigger: "blur" },
          {
            min: 6,
            max: 15,
            message: "长度在 6 到 15 个字符",
            trigger: "blur",
          },
        ],
        email: [
          { required: true, message: "请输入邮箱地址", trigger: "blur" },
          //{ type: 'email', message: '请输入正确的邮箱地址', trigger: ['blur', 'change'] }
          { validator: checkEmail, trigger: "blur" },
        ],
        mobile: [
          { required: true, message: "请输入手机号", trigger: "blur" },
          { validator: checkMobile, trigger: "blur" },
        ],
      },
      //修改查询到的用户对象
      editFrom: {},
      //修改表单验证规则
      editFromRules: {
        email: [
          { required: true, message: "请输入邮箱地址", trigger: "blur" },
          { validator: checkEmail, trigger: "blur" },
        ],
        mobile: [
          { required: true, message: "请输入手机号", trigger: "blur" },
          { validator: checkMobile, trigger: "blur" },
        ],
      },
    };
  },
  created() {
    this.getUserList();
  },
  methods: {
    async getUserList() {
      const { data: res } = await this.$http.get("users", {
        params: this.queryInfo,
      });
      if (res.meta.status !== 200) {
        return this.$message.error("获取用户列表失败!");
      }
      (this.userlist = res.data.users), (this.total = res.data.total);
    },
    //监听pagesize改变的事件
    handleSizeChange(newSize) {
      this.queryInfo.pagesize = newSize;
      //console.log(newSize);
      //修改页面数据条数时重新获取一下数据
      this.getUserList();
    },
    //监听页码值改变的事件
    handleCurrentChange(newPage) {
      this.queryInfo.pagenum = newPage;
      this.getUserList();
      //console.log(newPage);
    },
    //监听switch开关状态的改变
    async userStateChanged(userInfo) {
      //console.log(userInfo);
      const { data: res } = await this.$http.put(
        `users/${userInfo.id}/state/${userInfo.mg_state}`
      );
      if (res.meta.status !== 200) {
        userInfo.mg_state = !userInfo.mg_state;
        return this.$message.error("更新用户状态失败!");
      }
      this.$message.success("更新用户状态成功!");
    },
    //监听用户添加对话框的关闭事件
    addDialogClosed() {
      //resetFields():对整个表单进行重置，将所有字段值重置为初始值并移除校验结果
      this.$refs.addFormRef.resetFields();
    },
    //添加预验证
    addUser() {
      this.$refs.addFormRef.validate(async (valid) => {
        if (!valid) return;
        //如果预验证成功则发起请求
        const { data: res } = await this.$http.post("users", this.addForm);
        if (res.meta.status != 201) {
          this.$message.error("添加用户失败!");
        }
        this.$message.success("添加用户成功!");
        //隐藏添加的对话框
        this.addDialogVisible = false;
        //刷新页面
        this.getUserList();
      });
    },
    //展示修改用户的对话框
    async showEditDialog(id) {
      const { data: res } = await this.$http.get("users/" + id);
      if (res.meta.status != 200) {
        return tihs.$message.error("查询用户信息失败!");
      }
      this.editFrom = res.data;
      //console.log(this.editFrom);打印查询到的用户信息
      this.editDialogVisible = true;
    },
    //监听用户修改对话框的关闭事件
    editDialogClosed() {
      //resetFields():对整个表单进行重置，将所有字段值重置为初始值并移除校验结果
      this.$refs.editFromRef.resetFields();
    },
    //修改用户信息并提交
    editUserInfo() {
      this.$refs.editFromRef.validate(async (valid) => {
        //console.log(valid);打印预验证是否为true
        if (!valid) return;
        //发起修改用户请求
        const { data: res } = await this.$http.put(
          "users/" + this.editFrom.id,
          { email: this.editFrom.email, mobile: this.editFrom.mobile }
        );
        if (res.meta.status != 200) {
          return this.$message.error("修改用户信息失败!");
        }
        this.$message.success("修改用户信息成功!");
        //隐藏对话框
        this.editDialogVisible = false;
        //刷新页面
        this.getUserList();
      });
    },
    //根据Id删除对应的用户信息
    async removeUserById(id) {
      //弹窗询问用户是否删除数据
      const confirmResult = await this.$confirm(
        "此操作将永久删除该文件, 是否继续?",
        "提示",
        {
          confirmButtonText: "确定",
          cancelButtonText: "取消",
          type: "warning",
        }
      ).catch((err) => err);
      //如果用户确认删除，则返回值为字符串confirm
      //如果用户取消删除，则返回值为字符串cancel
      //console.log(confirmResult);
      if (confirmResult !== "confirm") {
        this.$message.info("已取消删除");
        return;
      }
      const { data: res } = await this.$http.delete("users/" + id);
      if (res.meta.status !== 200) {
        return this.$message.error("删除失败!");
      }
      this.$message.success("删除用户成功");
      this.getUserList();
    },
    //展示分配角色的对话框
    async setRole(userInfo) {
      this.userInfo = userInfo;
      const { data: res } = await this.$http.get("roles");
      if (res.meta.status != 200) {
        return this.$message.error("获取角色列表失败!");
      }
      this.roleList = res.data;
      this.setRoleDialogVisible = true;
    },
    //点击按钮，分配角色
    async saveRoleInfo() {
      if (!this.selectRoleId) {
        return this.$message.error("请选择要分配的角色");
      }
      const { data: res } = await this.$http.put(
        `users/${this.userInfo.id}/role`,
        {
          rid: this.selectRoleId,
        }
      );
      if (res.meta.status !== 200) {
        return this.$message.error("更新角色失败!");
      }
      this.$message.success("更新角色成功!");
      this.getUserList();
      this.setRoleDialogVisible = false;
    },
    //监听分配用户权限关闭事件
    setRoleDialogClosed() {
      (this.selectRoleId = ""), (this.userInfo = "");
    },
  },
};
</script>
<style lang="less" scoped>
.el-table {
  margin-top: 15px;
  font-size: 14px;
}
.el-pagination {
  margin-top: 15px;
}
</style>